Carry Data in differents scenes using Photon

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So I am kind of stuck in one problem that may seems easy.
I have the first scene that you may put your nickname and then join a room. The problem is that I can't save the name and pass it to another scene (the lobby).
I tried to use static variables, but I didn't get a good result and I presume that it's not good to use "shared" static variables in a multiplayer game.
I also tried to create an object that comes from a prefab "SaveInfo" in that way I use DontDestroyInLoad , So I could acess it in the others scenes. The problem is that it seems it always creats only one prefab in a room, not one for each player that gets in.
I also tried using PlayerPrefs.SetString, but I did not know how to acess easly the information.
How would you solve this problem?
Thank you for your help!